@book{26095,
	author = {Chartrand, G. and Lesniak, L. and Lesniak, L. ; jt. auth.},
	title = {Graphs and digraphs},
	publisher = {Chapman & Hall/CRC Press},
	year = {2005},
	address = {Boca Raton},
	edition = {4th},
	note = {"Purchased under NBHM grant for the year 2004-2005"}
}